Quark mass density- and temperature-dependent model for strange quark matter

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2001 EDP Sciences
, , Citation Yun Zhang et al 2001 EPL 56 361 DOI 10.1209/epl/i2001-00112-5

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Author affiliations

1 Department of Physics, Fudan University - Shanghai 200433, PRC

2 China Center of Advanced Science and Technology (World Laboratory) P. O. Box 8730, Beijing 100080, PRC

3 Institute of High Energy Physics - P. O. Box 918, Beijing 100080, PRC

Dates

  1. Received 11 January 2001
  2. Accepted 20 August 2001
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0295-5075/56/3/361

Abstract

It is found that the radius of a stable strangelet decreases as the temperature increases in a quark mass density-dependent model. To overcome this difficulty, we extend this model to a quark mass density- and temperature-dependent model in which the vacuum energy density at zero baryon density limit B depends on temperature. An ansatz which reads B = B0[1 − a(T/Tc) + b(T/Tc)2] is introduced and the regions for the best choice of the parameters are studied.

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10.1209/epl/i2001-00112-5